"I dieted and exercised and did it healthy the whole way," she said. "I appreciate all the concern, and I can see where it comes from. Ultimately, "I felt proud of everything I'd accomplished."

Now in "maintenance mode," Frederickson still has fears she will revert into the old habits that caused her to hit 260 lbs., but thanks the Biggest Loser for giving her the tools to combat her doubts.

"Of course, that thought always comes up, but I think what I've learned is that I have an inner strength," said the voice-over artist, who has previously admitted finding a balance would be tricky. "[Before,] I didn't trust myself. I was critical, and I judged myself. [Now,] I have a voice and I can trust myself."